Datasheet

STA559BW Register description
Doc ID 18190 Rev 1 35/67
Figure 12. OCFG = 11
The STA559BW can be configured to support different output configurations. For each PWM
output channel a PWM slot is defined. A PWM slot is always 1 / (8 * fs) seconds length. The
PWM slot define the maximum extension for PWM rise and fall edge, that is, rising edge as
far as the falling edge cannot range outside PWM slot boundaries.
Figure 13. Output mapping scheme
For each configuration the PWM signals from the digital driver are mapped in different ways
to the power stage:
Half
Bridge
Half
Bridge
Half
Bridge
Half
Bridge
OUT1A
OUT1B
OUT2A
OUT2B
Channel 3
OUT3B
OUT4B
OUT4A
OUT3A
Channel 1
Channel 2
Half
Bridge
Half
Bridge
Half
Bridge
Half
Bridge
OUT1A
OUT1B
OUT2A
OUT2B
Channel 3
OUT3B
OUT4B
OUT4A
OUT3A
Channel 1
Channel 2
FFX ™
modulator
REMAP
FFX1A
FFX1 B
FFX2 A
FFX 2B
OUT1A
OUT1B
OUT2A
OUT2B
Power
Bridge
OUT1A
OUT1B
OUT2A
OUT2B
FFX3 A
FFX3B
FFX4 A
FFX 4B
OUT3A
OUT3B
OUT4A
OUT4B
FFX ™
modulator
REMAP
FFX1A
FFX1 B
FFX2 A
FFX 2B
OUT1A
OUT1B
OUT2A
OUT2B
Power
Bridge
OUT1A
OUT1B
OUT2A
OUT2B
FFX3 A
FFX3B
FFX4 A
FFX 4B
OUT3A
OUT3B
OUT4A
OUT4B
FFX ™
modulator
REMAP
FFX1A
FFX1 B
FFX2 A
FFX 2B
OUT1A
OUT1B
OUT2A
OUT2B
Power
Bridge
OUT1A
OUT1B
OUT2A
OUT2B
FFX3 A
FFX3B
FFX4 A
FFX 4B
OUT3A
OUT3B
OUT4A
OUT4B
FFX ™
modulator
REMAP
FFX1A
FFX1 B
FFX2 A
FFX 2B
OUT1A
OUT1B
OUT2A
OUT2B
Power
Bridge
OUT1A
OUT1B
OUT2A
OUT2B
FFX3 A
FFX3B
FFX4 A
FFX ™
modulator
REMAP
FFX1A
FFX1 B
FFX2 A
FFX 2B
OUT1A
OUT1B
OUT2A
OUT2B
Power
Bridge
OUT1A
OUT1B
OUT2A
OUT2B
FFX3 A
FFX3B
FFX4 A
FFX 4B
OUT3A
OUT3B
OUT4A
OUT4B
FFX ™
modulator
REMAP
FFX1A
FFX1 B
FFX2 A
FFX 2B
OUT1A
OUT1B
OUT2A
OUT2B
Power
Bridge
OUT1A
OUT1B
OUT2A
OUT2B
FFX3 A
FFX3B
FFX4 A
FFX 4B
OUT3A
OUT3B
OUT4A
OUT4B